Fusible link unit

1. A fusible link unit comprising:

a battery with a battery post projecting on an upper surface of the battery;

a fuse unit arranged on the upper surface of the battery and having a battery terminal so as to be connected to the battery post;

a fuse cover covering an outer circumference of the fuse unit; and

a deck board arranged above the fuse cover so as to be capable of being opened and closed, wherein

the fuse cover is fixed by being held between the battery and the deck board in a closed state of the deck board, wherein

the battery is housed in a housing space of a vehicle room;

a planar contact surface of the deck board to be directly in contact with the fuse cover in the closed state of the deck board is formed as a plane surface; and

the planar contact surface of the deck board is directly supported at a peripheral portion of the housing space and covers the housing space so as to section the housing space from the vehicle room.

2. The fusible link unit according to claim 1 , wherein

the fuse cover has contact surfaces formed with plane surfaces so as to be in contact with the battery and the deck board.

3. The fusible link unit according to claim 2 , wherein the fuse cover, the contact surfaces in contact with the battery and the deck board comprise plane surfaces to provide surface-contact between the fuse cover, the contact surfaces in contact with the battery and the deck board, to increase a supporting area of the fuse cover and stabilize the fuse cover.

4. The fusible link unit according to claim 1 , wherein

the fuse unit comprises a fuse element, which is:

made of a conductive material,

provided with a fuse that fuses due to overcurrent,

molded with a synthetic resin, and

electrically connected to the battery terminal.

5. The fusible link unit according to claim 1 , wherein

the battery terminal comprises:

at one end thereof, a battery connection portion, which is formed of a hole into which the battery post is inserted for electrical connection, and

at the other end thereof, a stud bolt, which is provided to project in a direction upward from the upper surface of the battery.

6. The fusible link unit according to claim 5 , wherein

the fuse unit comprises a fuse element,

the battery terminal is fixed to the battery by the stud bolt, with the battery connection portion inserted into the battery post, and

the fuse element is connected to the stud bolt of the battery terminal fixed to the battery.

7. The fusible link unit according to claim 1 , wherein the fuse unit comprises a connector connected thereto, which is provided at a terminal portion of electric wires connected to equipment such that the fuse unit supplies electric power from the battery to the equipment.

8. The fusible link unit according to claim 1 , wherein the fuse cover of the fuse unit is arranged so as to cover the outer circumference of the fuse unit to protect the fuse unit.

9. The fusible link unit according to claim 1 , wherein

the fuse cover is made of an insulative material and comprises a cover portion and a main body portion,

the cover portion is arranged on the upper surface of the battery so as to cover the battery post of the battery and the battery terminal of the fuse unit, and

the cover portion is coupled to the main body portion to be capable of being opened and closed via a hinge.

10. The fusible link unit according to claim 9 , wherein

the main body portion of the fuse cover is arranged on the upper surface of the battery so as to cover the fuse unit to accommodate the fuse unit arranged, on the upper surface of the battery, so as to protrude from a side surface of the battery based on wires for connecting with equipment, and

the deck board is arranged above the fuse cover.

11. The fusible link unit according to claim 1 , wherein

a lower surface of the deck board and a contact surface of the fuse cover are in contact with each other and the fuse cover covers the fuse unit arranged on the upper surface of the battery in the closed state of the deck board, and

the deck board is apart from the fuse cover and a space above the fuse cover arranged on the upper surface of the battery is open in an open state of the deck board.

12. The fusible link unit according to claim 11 , wherein the fuse cover is arranged between the deck board and the battery such that in the closed state of the deck board, the fuse cover is fixed by being held between the upper surface of the battery and the lower surface of the deck board to prevent the generation of an abnormal sound.

13. The fusible link unit according to claim 1 , wherein the fuse unit and the fuse cover are arranged to overhang the upper surface of the battery so as to protrude from a side surface of the battery.

14. The fusible link unit according to claim 1 , wherein the fuse unit and the fuse cover are arranged on the upper surface of the battery so as not to protrude from a side surface of the battery.

15. The fusible link unit according to claim 1 , wherein the fuse unit comprises an L-shape arranged on the upper surface and side surfaces of the battery.

16. The fusible link unit according to claim 1 , wherein

a lower surface of the deck board comprises a buffer material, and

the fuse cover is fixed by being held between the battery and the buffer material of the lower surface of the deck board.